libcxx/test/std/numerics/complex.number/complex.ops/scalar_equals_complex.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <complex>
  10
  11 // template<class T>
  12 //   bool
  13 //   operator==(const T& lhs, const complex<T>& rhs);
  14
  15 #include <complex>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 template <class T>
  21 void
  22 test_constexpr()
  23 {
  24 #if TEST_STD_VER > 11
  25     {
  26     constexpr T lhs(-2.5);
  27     constexpr std::complex<T> rhs(1.5,  2.5);
  28     static_assert(!(lhs == rhs), "");
  29     }
  30     {
  31     constexpr T lhs(-2.5);
  32     constexpr std::complex<T> rhs(1.5,  0);
  33     static_assert(!(lhs == rhs), "");
  34     }
  35     {
  36     constexpr T lhs(1.5);
  37     constexpr std::complex<T> rhs(1.5, 2.5);
  38     static_assert(!(lhs == rhs), "");
  39     }
  40     {
  41     constexpr T lhs(1.5);
  42     constexpr std::complex<T> rhs(1.5, 0);
  43     static_assert(lhs == rhs, "");
  44     }
  45 #endif
  46 }
  47
  48 template <class T>
  49 void
  50 test()
  51 {
  52     {
  53     T lhs(-2.5);
  54     std::complex<T> rhs(1.5,  2.5);
  55     assert(!(lhs == rhs));
  56     }
  57     {
  58     T lhs(-2.5);
  59     std::complex<T> rhs(1.5,  0);
  60     assert(!(lhs == rhs));
  61     }
  62     {
  63     T lhs(1.5);
  64     std::complex<T> rhs(1.5, 2.5);
  65     assert(!(lhs == rhs));
  66     }
  67     {
  68     T lhs(1.5);
  69     std::complex<T> rhs(1.5, 0);
  70     assert(lhs == rhs);
  71     }
  72
  73     test_constexpr<T> ();
  74 }
  75
  76 int main(int, char**)
  77 {
  78     test<float>();
  79     test<double>();
  80     test<long double>();
  81 //     test_constexpr<int>();
  82
  83   return 0;
  84 }